Simplify the plugin related build tasks
Simplify the plugin related build tasks

This removes the grunt templates that were previously used to generate
"generic" configurations for plugin tasks.  There are several benefits
for this change:

  * you can now run task categories like `grunt uglify`
  * plugins can more easily change their own configuration
  * less black magic

msmolens/girder,jbeezley/girder,jbeezley/girder,msmolens/girder,essamjoubori/girder,manthey/girder,Xarthisius/girder,adsorensen/girder,girder/girder,sutartmelson/girder,RafaelPalomar/girder,jbeezley/girder,adsorensen/girder,kotfic/girder,Xarthisius/girder,data-exp-lab/girder,data-exp-lab/girder,salamb/girder,opadron/girder,manthey/girder,Kitware/girder,opadron/girder,opadron/girder,opadron/girder,girder/girder,msmolens/girder,girder/girder,Kitware/girder,Xarthisius/girder,Xarthisius/girder,opadron/girder,salamb/girder,data-exp-lab/girder,manthey/girder,Xarthisius/girder,manthey/girder,data-exp-lab/girder,salamb/girder,essamjoubori/girder,RafaelPalomar/girder,essamjoubori/girder,girder/girder,sutartmelson/girder,RafaelPalomar/girder,essamjoubori/girder,kotfic/girder,essamjoubori/girder,salamb/girder,kotfic/girder,adsorensen/girder,salamb/girder,data-exp-lab/girder,sutartmelson/girder,sutartmelson/girder,adsorensen/girder,sutartmelson/girder,jbeezley/girder,kotfic/girder,RafaelPalomar/girder,RafaelPalomar/girder,Kitware/girder,adsorensen/girder,kotfic/girder,msmolens/girder,Kitware/girder,msmolens/girder